1. Department of Pediatrics, College of Medicine, University of Bisha, Bisha, Saudi Arabia
2. Department of Pediatrics, Faculty of Medicine & Health Sciences, University of Kassala, Kassala, Sudan
3. Department of Microbiology, Faculty of Medicine & Health Sciences, University of Kassala, Kassala, Sudan
4. Department of Pediatrics, King Saud Medical City, Riyadh, Saudi Arabia
5. Department of Microbiology, Faculty of Veterinary Medicine, University of Khartoum, Khartoum, Sudan
6. Department of Parasitology, Faculty of Medical Laboratory Science, International University of Africa, Khartoum, Sudan
7. Department of Clinical Microbiology and Parasitology, College of Medicine, University of Bisha, Bisha, Saudi Arabia